Oh wow I totally agree. I HATE when strangers touch my hair, especially if I feel self conscious about it. Big blonde curly hair is tough to feel good about sometimes, sometimes it goes out of control lol.
The only time Im ok with it, is if its family or my bestfriend or boyfriend. Sometimes if someone asks politely I dont mind, although it does make me feel a little weird. If someone just reaches out and touches (this happens at school really often) I move away and ask them WTF are they doing! And so on lol.
One really weird time I was on the bus and some older woman was asking 21 questions about my hair, how I wash it, what I wash it with, what I put in it, how I dry it, how long does it last, etc etc. I was really happy she got off the bus before she asked me anymore questions lol it was VERY strange. Im kind of too nice and didnt want to ignore her or tell her off so I was answering her lol, I didnt know what else to immediatly do lol, I was startled too.